I know this has already been asked but just I wondered why there are no proper answers.
Does anyone know if it is possible that there is an acoustic version (guitar or piano) recorded somewhere by the band themselves?
I am asking because my daughter loves the song and wants to make it her wedding song. My thoughts are that it would be perfect as an acoustic number for this and would love to get my hands on it.

Now I'm envisioning a wedding parade with Stormtroopers and Jedis swinging around lightsabers in the middle of smoke and lasers, while the song is blaring from the loudspeakers.
Yeah, that would be an epic scene.